Island



WITNESSES.

INVENTOR.

7 ENE, FHOTO LJTNOGRAPHER, WASHINGTON. D. C.

v SAMUEL DARLING, or PROVIDENCE, RHODE ISLAND.

Letters Patent No. 100,870, dated March 15, 1870.

\ RAILROAD-CAR VENTILATOR.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern:

Be it known that I, SAMUEL DARLING, of the city and county of Providence, in the State of Rhode Island, have invented certain new and useful Improvements in Ventilating Railroad-Cares and'I do hereby declarethat the following. specification, taken inconnection with the drawings, making a partof the same, is a full, clear, andexactdescription thereof.

Thedrawing 'representsja car with my'improvements attached. 1 v The drawing is intended to show one part of the window closed, and the other-part swung around so asto rest against, or. nearly so, the part closed.

The object of my inventionis to furnish a car with a constant supp lyand circulation of fresh air, and at the same time exclude the cinders and dust, and consists inthe device for admitting the air, and the peculiar construction of the windows for. the escape of the same, as hereinafter described.

It is well understood that the necessity of travel ing by railroad is steadily increasing, and that a large proportion of our population isdaily conveyed by this medium to their several places of destination.

It is therefore incumbent upon railroad companies to provide their passengers with all reasonable comforts, and especially to furnish them with a constant and. abundant supply of fresh air.

1 construct the windows, as shown in the drawings,

. in two parts, A and A, which are hung, to a perpendicul'ar post, B, and swing like an ordinary door, and

when closed, stand at an angle with the side of the car of about forty degrees.

The doors, being made to swing in either direction, may be pushed out parallel withthe sides of the car or swung in the opposite direction, to any desired angle.

Thus, while the car .is in motion, the part of the angle with the side of the car, while the upper part will be the same as an ordinary window. The lower part may either be attached to and slide with the upper, or e independent thereof and remain stationary. I

In introducing fresh air, I propose to reduce its velocity, before it reaches the interior of the car, to such a degree that it will not sustain and carry the cinders and dust. For this purpose I construct in the top of the car a hollow compartment, 0, closed at one end, and partially opened at the other, into which the air is conveyed by the tube D.

The tube. D is crooked, or provided with a knee,

so that the end that is within the compartment shall be so directed that it will deliver the air againstfthe closed endof the same. Thus an equal distribution of the air will be obtained in the compartment Q, and its velocity reduced in proportion as the size of the compartment exceedsrthe diameter of the tube 1), and to such an extent that theciuders :and dust will fall, and remain in the compartment 0, while the air passes through the aperture E into t e car;

The tube D is open at all times for the admission of the air, but the window is subject to the pleasure of the passenger. It will therefore be readily seen that the circulation will be increased or diminished as the window is opened or closed. Thus each passenger has access. to the means of ventilation, and

can easily regulate his supply of fresh air, as his com:

fort may require. 7

What I claim as my invention, and desire to se-- cure by Letters Patent, is-

l. A car-window,- composed of two sashes or doors A and A, arranged at an angle with the side of. the car, and swinging horizontally, the whole constructed and operating substantially as described.

2. The device for admitting the air, consisting of the tube 1), in combination with the compartment 0,.

the whole constructed and operating substantially as descn'bed.

3. A window, constructed as described, in combination with the device for admitting the air, and op-- erating in connectionwith each other in the manner and for the purposes substantially as described.

' SAMUEL DARLING.

Witnesses: r

J. HERBERT Sunni), W'ALTER B. VINCENT. 

